From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
---|---|
To: | Ron Johnson <ronljohnsonjr(at)gmail(dot)com>, pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: How does this FK constraint error happen? |
Date: | 2024-07-15 15:06:02 |
Message-ID: | 4ff0dd59-9d7b-4a13-ad75-3627080458e1@aklaver.com |
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Lists: | pgsql-general |
On 7/15/24 07:53, Ron Johnson wrote:
> On Mon, Jul 15, 2024 at 10:35 AM Peter J. Holzer <hjp-pgsql(at)hjp(dot)at
> <mailto:hjp-pgsql(at)hjp(dot)at>> wrote:
> [snip]
>
>
> Is it possible that some other process created an entry in
> rel_group_user between these two queries?
>
> That was, in fact, the problem. At just the wrong time to impact one of
> the child databases (TAPd), but not the other two (TAPb and TAPc).
>
> TAPd=# select * from rel_group_user
> where user_id between 1100 and 1300
> order by user_id;
> user_id | group_id | modified_by | modified_on
> ---------+----------+-------------+-------------------------
> 1133 | 2 | 1133 | 2024-07-15 08:43:35.669
> 1142 | 2 | 1142 | 2024-07-15 09:05:58.451
> 1147 | 2 | 1147 | 2024-07-15 09:30:37.169
> 1158 | 2 | 1158 | 2024-07-15 09:36:45.142
> 1197 | 2 | 1197 | 2024-07-15 09:52:58.477
> 1210 | 2 | 1210 | 2024-07-15 02:42:09.355 <<<<<<<<<<<<<
Time travel?
2024-07-15 02:41:15 Deleting from FISPTAPPGS401DA/TAPd.public.access_user
DELETE FROM public.access_user;
Or do the cron jobs take that long to execute?
How is modified_on created?
> 1229 | 2 | 1229 | 2024-07-15 08:33:48.443
> 1242 | 2 | 1242 | 2024-07-15 10:29:51.176
> 1260 | 2 | 1260 | 2024-07-15 07:36:21.182
> 1283 | 2 | 1283 | 2024-07-15 09:48:25.214
> 1288 | 2 | 1288 | 2024-07-15 08:10:33.609
> (11 rows)
>
> TAPd=# select user_id, login_id, created_on, modified_on
> TAPd-# from public.access_user
> TAPd-# where user_id = 1210;
> user_id | login_id | created_on | modified_on
> ---------+------------+-------------------------+-------------------------
> 1210 | JORIEUSER3 | 2023-10-20 11:54:24.562 | 2024-07-15 02:42:09.355
> (1 row)
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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